449 	struct mmp_pdma_desc_sw *first = NULL, *prev = NULL, *new;  in mmp_pdma_prep_memcpy()  local
469 		new = mmp_pdma_alloc_descriptor(chan);  in mmp_pdma_prep_memcpy()
470 		if (!new) {  in mmp_pdma_prep_memcpy()
479 		new->desc.dcmd = chan->dcmd | (DCMD_LENGTH & copy);  in mmp_pdma_prep_memcpy()
480 		new->desc.dsadr = dma_src;  in mmp_pdma_prep_memcpy()
481 		new->desc.dtadr = dma_dst;  in mmp_pdma_prep_memcpy()
484 			first = new;  in mmp_pdma_prep_memcpy()
486 			prev->desc.ddadr = new->async_tx.phys;  in mmp_pdma_prep_memcpy()
488 		new->async_tx.cookie = 0;  in mmp_pdma_prep_memcpy()
489 		async_tx_ack(&new->async_tx);  in mmp_pdma_prep_memcpy()
491 		prev = new;  in mmp_pdma_prep_memcpy()
504 		list_add_tail(&new->node, &first->tx_list);  in mmp_pdma_prep_memcpy()
511 	new->desc.ddadr = DDADR_STOP;  in mmp_pdma_prep_memcpy()
512 	new->desc.dcmd |= DCMD_ENDIRQEN;  in mmp_pdma_prep_memcpy()
530 	struct mmp_pdma_desc_sw *first = NULL, *prev = NULL, *new = NULL;  in mmp_pdma_prep_slave_sg()  local
551 			new = mmp_pdma_alloc_descriptor(chan);  in mmp_pdma_prep_slave_sg()
552 			if (!new) {  in mmp_pdma_prep_slave_sg()
557 			new->desc.dcmd = chan->dcmd | (DCMD_LENGTH & len);  in mmp_pdma_prep_slave_sg()
559 				new->desc.dsadr = addr;  in mmp_pdma_prep_slave_sg()
560 				new->desc.dtadr = chan->dev_addr;  in mmp_pdma_prep_slave_sg()
562 				new->desc.dsadr = chan->dev_addr;  in mmp_pdma_prep_slave_sg()
563 				new->desc.dtadr = addr;  in mmp_pdma_prep_slave_sg()
567 				first = new;  in mmp_pdma_prep_slave_sg()
569 				prev->desc.ddadr = new->async_tx.phys;  in mmp_pdma_prep_slave_sg()
571 			new->async_tx.cookie = 0;  in mmp_pdma_prep_slave_sg()
572 			async_tx_ack(&new->async_tx);  in mmp_pdma_prep_slave_sg()
573 			prev = new;  in mmp_pdma_prep_slave_sg()
576 			list_add_tail(&new->node, &first->tx_list);  in mmp_pdma_prep_slave_sg()
588 	new->desc.ddadr = DDADR_STOP;  in mmp_pdma_prep_slave_sg()
589 	new->desc.dcmd |= DCMD_ENDIRQEN;  in mmp_pdma_prep_slave_sg()
609 	struct mmp_pdma_desc_sw *first = NULL, *prev = NULL, *new;  in mmp_pdma_prep_dma_cyclic()  local
642 		new = mmp_pdma_alloc_descriptor(chan);  in mmp_pdma_prep_dma_cyclic()
643 		if (!new) {  in mmp_pdma_prep_dma_cyclic()
648 		new->desc.dcmd = (chan->dcmd | DCMD_ENDIRQEN |  in mmp_pdma_prep_dma_cyclic()
650 		new->desc.dsadr = dma_src;  in mmp_pdma_prep_dma_cyclic()
651 		new->desc.dtadr = dma_dst;  in mmp_pdma_prep_dma_cyclic()
654 			first = new;  in mmp_pdma_prep_dma_cyclic()
656 			prev->desc.ddadr = new->async_tx.phys;  in mmp_pdma_prep_dma_cyclic()
658 		new->async_tx.cookie = 0;  in mmp_pdma_prep_dma_cyclic()
659 		async_tx_ack(&new->async_tx);  in mmp_pdma_prep_dma_cyclic()
661 		prev = new;  in mmp_pdma_prep_dma_cyclic()
670 		list_add_tail(&new->node, &first->tx_list);  in mmp_pdma_prep_dma_cyclic()
677 	new->desc.ddadr = first->async_tx.phys;  in mmp_pdma_prep_dma_cyclic()